Genesis city map, 6-month renewal

Maintain, update, and improve https://genesis.city/, a top-down map of Decentraland. This is an extension of the previous grant: https://governance.decentraland.org/proposal/?id=9d6efbe0-65d1-11ed-bf97-7dbf9f54c71d

We’ll continue maintaining the website, running the mapping script weekly, and improving the product according to community feedback.